Document Type and Number:
Japanese Patent JPS5536312
Kind Code:
Y2
Application Number:
JP13812275U
Publication Date:
August 26, 1980
Filing Date:
October 09, 1975
Export Citation:
International Classes:
B63B29/20; B63B3/56; B63B25/04; (IPC1-7): B63B29/20; B63B3/56